*{
    margin:0;
    padding:0;
    box-sizing: border-box;
}
li{
    list-style: none;;
}
img{
    vertical-align: middle;
}
a{
    text-decoration: none;
}

.fl{
    float:left;
}
.fr{
    float:right;
}
.clearfix{
    display: table;
    content:"";
    clear:both;
}